Naked-eye 3D display module, driving method thereof and naked-eye 3D display device

Abstract

The present invention provides a naked-eye 3D display module, a driving method thereof, and a naked-eye 3D display device. The naked-eye 3D display module comprises multiple lenses in each lens group in a dimming structure, and each lens group corresponds to a pixel group. Compared to the prior art where one lens corresponds to one pixel group, the number of effective pixels in each pixel group is increased, thereby increasing viewpoints and expanding viewing areas. Furthermore, the activation sequence of the lenses in each lens group is controlled so that, at any given moment during 3D display, only one lens in each lens group is in a light-transmitting state, while the other lenses are in a non-light-transmitting state. This avoids crosstalk between images displayed in adjacent viewing areas and improves the display quality.

Description

Technical Field

[0001] The present application relates to the field of display technology, and more specifically, to a naked-eye 3D display module, a driving method thereof, and a naked-eye 3D display device. Background Art

[0002] Currently, naked-eye 3D displays are generally based on 2D displays, using slit gratings, cylindrical lenses, microlenses, and other devices installed on the light-emitting surface of the 2D display. In current 3D display technology based on cylindrical lenses, the size of the cylindrical lenses is generally related to the pixel size. The viewing angle of this design is limited by the cylindrical lens processing technology and the pixel size of the 2D display. It cannot achieve ultra-multiple viewpoints or an ultra-large viewing area, and cannot meet the needs of multiple viewers. Its advantages of convenient viewing, comfortable viewing, and wide range of applications cannot be fully demonstrated in the market competition. Therefore, increasing the viewing area of ​​naked-eye 3D is a key research direction in current naked-eye 3D technology. Summary of the Invention

[0003] In response to the shortcomings of existing methods, this application proposes a naked-eye 3D display module, a driving method thereof, and a naked-eye 3D display device, which are used to solve the problems of limited viewpoints and limited viewing areas in the existing naked-eye 3D display devices.

[0004] In a first aspect, an embodiment of the present application provides a naked-eye 3D display module, comprising:

[0005] A display screen, comprising a plurality of pixel groups, each of the pixel groups comprising x effective pixels, where x is an integer greater than or equal to 2;

[0006] The dimming structure is arranged on the light-emitting surface of the display screen and includes multiple lens groups, each of which corresponds to one of the pixel groups. Each of the lens groups includes multiple lenses. At the same time during the 3D display process, only one lens in each lens group is in an open state to allow display light to pass through.

[0007] Optionally, the dimming structure includes a first liquid crystal cell, and the first liquid crystal cell is configured to form the lens for allowing display light to pass through in a selected area under the control of a driving signal at a same moment during a 3D display process.

[0008] Optionally, the first liquid crystal box includes a first polarizer, a first electrode, a first liquid crystal layer, a second electrode and a second polarizer arranged in a row on the light-emitting surface of the display screen; the polarization angles of the first polarizer and the second polarizer are perpendicular to each other; the first electrode layer includes a plurality of first sub-electrodes, and during the 3D display process, the second electrode is maintained at a common voltage, and each of the first sub-electrodes is maintained at a corresponding driving voltage according to a driving signal, so that the liquid crystal molecules in the selected area of ​​the first liquid crystal layer are deflected to form the lens for allowing the display light to pass through.

[0009] Optionally, the dimming structure includes: a second liquid crystal box, configured to form a plurality of lens groups under the control of a driving signal, the lens group including a plurality of lenses, and each lens in each lens group is in an open state during the 3D display process; an adjustable light-transmitting layer, including a plurality of adjustable areas, each of the adjustable areas is an orthographic projection on the display screen covering the orthographic projection of one of the lenses on the display screen, and each of the adjustable areas is in a light-transmitting state or a light-shielding state under the control of a control signal.

[0010] Optionally, the dimming structure includes: multiple dielectric lens groups, the dielectric lens groups include multiple dielectric lenses; an adjustable light-transmitting layer, including multiple adjustable areas, each of the adjustable areas is an orthographic projection on the display screen covering the orthographic projection of one of the dielectric lenses on the display screen, and each of the adjustable areas is in a light-transmitting state or a light-shielding state under the control of a control signal.

[0011] Optionally, the adjustable light-transmitting layer includes a fifth electrode layer, a sixth electrode layer, and a third liquid crystal layer located between the fifth electrode layer and the sixth electrode layer, wherein the fifth electrode layer includes a plurality of fifth sub-electrodes, and each fifth sub-electrode corresponds to one of the adjustable regions.

[0012] Optionally, the adjustable light-transmitting layer includes a seventh electrode layer, an eighth electrode layer, and an electrochromic material layer located between the seventh electrode layer and the eighth electrode layer, wherein the seventh electrode layer includes a plurality of seventh sub-electrodes, and each seventh sub-electrode corresponds to one of the adjustable regions.

[0013] Optionally, the naked-eye 3D display module further includes a spacer layer, and the spacer layer is located between the dimming structure and the display screen.

[0014] In a second aspect, an embodiment of the present application provides a naked-eye 3D display device, comprising the above-mentioned naked-eye 3D display module.

[0015] In a third aspect, an embodiment of the present application provides a method for driving a naked-eye 3D display module, for driving the above-mentioned naked-eye 3D display module. The method for driving the naked-eye 3D display module includes:

[0016] The control display screen is displayed according to the layout diagram;

[0017] During the 3D display process, each lens in each lens group in the dimming structure is controlled to be turned on in sequence.

[0018] Optionally, controlling each lens in each lens group in the dimming structure to be turned on in sequence includes: controlling each lens in each lens group in the dimming structure to be turned on in sequence during the display time of each frame of display image.

[0019] Optionally, when the dimming structure includes the first liquid crystal box or the second liquid crystal box, the driving method of the display module further includes: adjusting the parameters of the driving signal to adjust the number of lenses in each lens group and the curvature radius of each lens.

[0020] The beneficial technical effects brought about by the technical solutions provided by the embodiments of the present application are:

[0021] The naked-eye 3D display module, its driving method, and naked-eye 3D display device provided in the embodiments of the present application, by comprising multiple lenses in each lens group in the dimming structure, and each lens group corresponding to a pixel group, can increase the number of effective pixels in each pixel group compared to the prior art where one lens corresponds to one pixel group, thereby achieving an increase in viewpoints and an expansion of the viewing area; at the same time, by controlling the opening sequence of the lenses in each lens group, only one lens in each lens group is in a light-transmitting state at the same time during the 3D display process, while the other lenses are in a non-light-transmitting state, thereby avoiding the problem of crosstalk between images displayed in adjacent viewing areas and improving the display effect.

[0022] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0024] Figure 1 A schematic structural diagram of a naked-eye 3D display module provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the display principle of a naked-eye 3D display module under different time sequences provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the splicing relationship between a sub-view and a full view provided in an embodiment of the present application;

[0027] Figure 4 A schematic structural diagram of a dimming structure in a naked-eye 3D display module provided in an embodiment of the present application;

[0028] Figure 5 A schematic structural diagram of another dimming structure in a naked-eye 3D display module provided in an embodiment of the present application;

[0029] Figure 6 This is a schematic structural diagram of another dimming structure in the naked-eye 3D display module provided in an embodiment of the present application;

[0030] Figure 7 A schematic structural diagram of an adjustable light-transmitting layer in the dimming structure provided in an embodiment of the present application;

[0031] Figure 8 A schematic structural diagram of another adjustable light-transmitting layer in the dimming structure provided in an embodiment of the present application;

[0032] Figure 9 A schematic diagram of the framework structure of a naked-eye 3D display device provided in an embodiment of the present application;

[0033] Figure 10 A schematic flow chart of a driving method for a naked-eye 3D display module provided in an embodiment of the present application.

[0034] Reference numerals:

[0035] 1-display screen; 11-pixel group; 111-effective pixels;

[0036] 2-dimming structure; 21-lens group; 211-lens; 211 / 1-first lens; 211 / 2-second lens; 211 / 3-third lens;

[0037] 201a - first electrode layer; 2011a - first sub-electrode; 202a - first liquid crystal layer; 203a - second electrode layer; 204a - first polarizer; 205a - second polarizer;

[0038] 201b - third electrode layer; 2011b - third sub-electrode; 202b - second liquid crystal layer; 203b - fourth electrode layer; 206b - adjustable light transmission layer;

[0039] 21c-dielectric lens group; 211c-dielectric lens; 206c-adjustable light transmission layer;

[0040] 2061 - fifth electrode layer; 20611 - fifth sub-electrode; 2062 - third liquid crystal layer; 2063 - sixth electrode layer;

[0041] 2064 - seventh electrode layer; 20641 - seventh sub-electrode; 2065 - electrochromic material layer; 2066 - eighth electrode layer;

[0042] 3- spacer layer;

[0043] 10-Adjustable area. DETAILED DESCRIPTION

[0044] The present application is described in detail below. Examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. In addition, if the detailed description of the known technology is not necessary for the features of the present application shown, it will be omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0045] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0046] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "the" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of this application refers to the presence of features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0047] In lenticular lens-based 3D display technology, the size of the lenticular lens is generally roughly the same as the size of the corresponding pixel group. This design's viewing angle is limited by the lenticular lens manufacturing process and the pixel size of the 2D display. This design cannot achieve multiple viewpoints or a very large viewing area, which is unsuitable for multiple viewers. Its advantages of convenient, comfortable viewing, and wide applicability cannot be fully realized in the competitive market. Therefore, increasing the viewing area of ​​naked-eye 3D is a key research direction in current naked-eye 3D technology.

[0048] The naked-eye 3D display module, its driving method and display device provided in this application are intended to solve the above technical problems in the prior art.

[0049] The embodiment of the present application provides a naked eye 3D display module, such as Figure 1 and Figure 2 As shown, the naked-eye 3D display module includes a display screen 1 and a dimming structure 2 arranged on the light-emitting surface of the display screen 1 .

[0050] The display screen 1 includes multiple pixel groups 11, each pixel group 11 includes x effective pixels 111, where x is an integer greater than or equal to 2; the dimming structure 2 includes multiple lens groups 21, each lens group 21 corresponds to a pixel group 11, and each lens group 21 includes multiple lenses 211. At the same time during the 3D display process, only one lens 211 in each lens group 21 is in a light-transmitting state to allow display light to pass through.

[0051] Specifically, the effective pixel 111 refers to the display light emitted by which can be refracted by any lens in the lens group. The more effective pixels 111 there are in the pixel group 11, the more corresponding viewpoint liquid crystals there are.

[0052] Specifically, if Figure 2 and Figure 3 As shown, taking the lens group 21 including three lenses 211 as an example, at time sequence 1, the first lens 211 / 1 is turned on, and the display light emitted by the pixel group 11 can be seen in the viewing area 1 after the polarization effect of the first lens 211 / 1. The image formed by all the pixel groups 11 in the display screen 1 at time sequence 1 is the visual area. Figure 1 At time sequence 2, the second lens 211 / 2 is turned on, and the display light emitted by the pixel group 11 can be seen in the viewing area 2 through the polarization effect of the second lens 211 / 2. The image formed by all the pixel groups 11 in the display screen 1 at time sequence 2 is the visual area 2. Figure 2 At time sequence 3, the third lens 211 / 3 is turned on, and the display light emitted by the pixel group 11 can be seen in the viewing area 3 through the polarization effect of the third lens 211 / 3. The image formed by all the pixel groups 11 in the display screen 1 at time sequence 3 is the visual area. Figure 3 .See Figure 1 To Vision Figure 3 Stitching means full view, and the field of view of full view is wider.

[0053] The naked-eye 3D display module provided in this embodiment, by making each lens group 21 in the dimming structure 2 include multiple lenses 211, and each lens group 21 corresponds to a pixel group 11, can increase the number of effective pixels in each pixel group 11 compared to the situation in the prior art where one lens corresponds to a pixel group 11, thereby achieving an increase in viewpoints and an expansion of the viewing area; at the same time, by controlling the opening sequence of the lenses 211 in each lens group 21, at the same time during the 3D display process, only one lens 211 in each lens group 21 is in the opening state, and the other lenses 211 are in the non-light-transmitting state, thereby avoiding the problem of crosstalk between images displayed in adjacent viewing areas and improving the display effect.

[0054] Optionally, please continue to refer to Figure 1The naked-eye 3D display module provided in this embodiment further includes a spacer layer 3, which is located between the dimming structure 2 and the display screen 1. Specifically, the spacer layer 3 is bonded to the dimming structure 2 and the display screen 1, respectively, and the spacer layer 3 has good light transmittance. Based on this, the material of the spacer layer 3 includes optical adhesive. In order to meet the demand for a wide viewing angle, the thickness of the spacer layer 3 has certain requirements. Therefore, in addition to the optical adhesive, the spacer layer 3 also includes spacer glass. The insulating glass is bonded to the display screen 1 and the dimming structure 2, respectively, through the above-mentioned optical adhesive. In addition, the thickness of the spacer layer 3 is determined according to the focal length and defocus condition of the lens 211.

[0055] Specifically, in actual design, a theoretical focal length of the lens will be calculated first according to the 3D imaging requirements. When calculating the theoretical focal length of the lens 211, only the light output from the center point of the lens 211 is considered. The focal length of the lens 211 is related to the total thickness of the spacer layer 3 and the ratio of the refractive indices of the various film layers in the spacer layer 3. For example, under the condition that the refractive index is determined, the greater the total thickness of the spacer layer 3, the greater the focal length of the lens 211. Under the condition that the total thickness of the spacer layer 3 is determined, the greater the refractive index, the greater the focal length of the lens 211.

[0056] However, in actual use, each lens 211 in the lens group 21 needs to correspond to a pixel group 11. As the position of the effective pixel 111 in the pixel group 11 changes, the distance of the effective pixel 111 relative to the lens 211 also changes, resulting in varying degrees of defocus. Therefore, to balance the defocus of the pixel group, the focal length of the lens 211 is usually optimized during design so that the effective pixel 111 located at the center of the pixel group 11 is somewhat defocused, while the effective pixels 111 at the opposite edges of the pixel group 11 are in focus. This improves the defocus of the effective pixels 111 at the outermost edges of the pixel group 11, thereby optimizing the overall imaging effect.

[0057] In an optional embodiment, the dimming structure 2 includes a first liquid crystal cell 2 a , which is configured to form a lens 211 for allowing display light to pass through in a selected area under the control of a driving signal at the same moment during the 3D display process.

[0058] Specifically, the first liquid crystal box 2a includes a first polarizer 204a, a first electrode, a first liquid crystal layer 202a, a second electrode and a second polarizer 205a arranged in sequence on the light-emitting surface of the display screen 1; the polarization angles of the first polarizer 204a and the second polarizer 205a are perpendicular to each other; the first electrode layer 201a includes a plurality of first sub-electrodes 2011a. During the 3D display process, the second electrode layer 203a is maintained at a common voltage, and each first sub-electrode 2011a is maintained at a corresponding driving voltage according to a driving signal, so that the liquid crystal molecules in a selected area of ​​the first liquid crystal layer 202a are deflected to form a lens 211 for allowing the display light to pass through. For example, the potential of the first sub-electrode 2011a in a specific area is a positive voltage, and the potential of the first sub-electrode 2011a in other areas is a negative voltage. At the same time, the potentials of multiple first sub-electrodes 2011a in a specific area are also different, that is, the potential of each first sub-electrode 2011a located in a specific area gradually decreases in the direction from the center point of the specific area to the surrounding area, so as to control the deflection angle of the liquid crystal molecules at different positions in the specific area, thereby forming a lens 211 light effect.

[0059] Specifically, the first liquid crystal cell 2a in this embodiment is a single-layer IPS liquid crystal cell structure. The IPS mode is in a normally black state when power is off. This ensures that light cannot pass through the unactivated lenses 211 due to the orthogonal polarization directions of the first and second polarizers. In other words, light can only pass through selected areas, thereby achieving the effect of only one lens 211 being activated in each lens group 21. Furthermore, because the IPS mode enables a high refresh rate in liquid crystal displays, changes in the light transmission state between adjacent lenses 211 are not easily detected by the human eye, thereby ensuring continuity of the entire view.

[0060] In another optional embodiment, as Figure 5 As shown, the dimming structure 2 includes a second liquid crystal box and an adjustable light-transmitting layer; the second liquid crystal box is configured to form a plurality of lens groups 21 under the control of a driving signal, the lens group 21 includes a plurality of lenses 211, and during the 3D display process, each lens 211 in each lens group 21 is in an open state; the adjustable light-transmitting layer 206b includes a plurality of adjustable areas 10, the orthographic projection of each adjustable area 10 on the display screen 1 covers the orthographic projection of a lens 211 on the display screen 1, and each adjustable area 10 is in a light-transmitting state or a light-shielding state under the control of the control signal.

[0061] Specifically, if Figure 5As shown, the second liquid crystal box includes a third electrode layer 201b, a fourth electrode layer 203b, and a second liquid crystal layer 202b located between the third electrode layer 201b and the fourth electrode layer 203b, wherein the third electrode layer 201b includes a plurality of third sub-electrodes 2011b. During the 3D display process, the fourth electrode layer 203b is maintained at a common voltage, and each third sub-electrode 2011b is maintained at a corresponding driving voltage according to a driving signal, thereby forming a plurality of lenses 211.

[0062] In another optional embodiment, Figure 6 As shown, the dimming structure 2 includes multiple dielectric lens groups and an adjustable light-transmitting layer 206c; the dielectric lens group includes multiple dielectric lenses 211c; the adjustable light-transmitting layer 206c includes multiple adjustable areas 10, each adjustable area 10 is an orthographic projection on the display screen 1 covering the orthographic projection of a dielectric lens 211c on the display screen 1, and each adjustable area 10 is in a light-transmitting state or a light-shielding state under the control of a control signal.

[0063] Specifically, in this embodiment, the lens group is a dielectric lens group 21c, and the lens is a dielectric lens 211c. There is no need to drive the dielectric lens 211c. That is, the dielectric lens 211c can be turned on or off by driving each adjustable area 10 of the adjustable light-transmitting layer to determine whether it is in a light-transmitting state.

[0064] For the adjustable light-transmitting layer, liquid crystal technology or electrochromic materials can be used to achieve it, which is described in detail below.

[0065] Specifically, if Figure 7 As shown, the adjustable light-transmitting layer includes a fifth electrode layer 2061, a sixth electrode layer 2063, and a third liquid crystal layer 2062 located between the fifth electrode layer 2061 and the sixth electrode layer 2063. The fifth electrode layer 2061 includes a plurality of fifth sub-electrodes 20611, each of which corresponds to an adjustable region 10 in the above-described embodiment. When the lens 211 (liquid crystal lens 211 or dielectric lens 211) corresponding to a particular adjustable region 10 needs to be turned on at the current moment, the fifth sub-electrode 20611 corresponding to the adjustable region 10 is controlled to be at an on potential.

[0066] Specifically, if Figure 8As shown, the adjustable light-transmitting layer includes a seventh electrode layer 2064, an eighth electrode layer 2066, and an electrochromic material layer 2065 located between the seventh and eighth electrode layers 2064 and 2066. The seventh electrode layer 2064 includes multiple seventh sub-electrodes 20641, each of which corresponds to an adjustable region 10 in the above-described embodiment. The electrochromic material layer 2065 is in a light-transmitting or light-shielding state under the action of an electric field. Therefore, when the lens 211 (liquid crystal lens 211 or dielectric lens 211) corresponding to a particular adjustable region 10 needs to be turned on at the current moment, the seventh sub-electrode 20641 corresponding to that adjustable region 10 is controlled to be at an on potential, thereby controlling the electrochromic material layer 2065 of that adjustable region 10 to be in a light-transmitting state.

[0067] Based on the same inventive concept, the present application provides a naked-eye 3D display device, such as Figure 9 As shown, the naked-eye 3D display device includes the naked-eye 3D display module in the above embodiment and has the beneficial effects of the naked-eye 3D display module in the above embodiment, which will not be described in detail here.

[0068] Specifically, the naked-eye 3D display device in the above embodiments provided in this embodiment further includes a driver chip. The driver chip can be integrated or include a display driver chip for driving the display screen and a polarization driver chip for driving the dimming structure.

[0069] Based on the same inventive concept, the embodiment of the present application provides a driving method of a naked-eye 3D display module, which is used to drive the naked-eye 3D display module in the above embodiment, such as Figure 1 and Figure 10 As shown, the driving method of the naked-eye 3D display module includes:

[0070] S1: Control display screen 1 to display according to the layout.

[0071] Specifically, the images are arranged according to the display screen of the current frame, and the display screen 1 is controlled to display according to the arrangement.

[0072] S2: During the 3D display process, each lens 211 in each lens group 21 in the dimming structure 2 is controlled to be turned on in sequence.

[0073] The driving method of the naked-eye 3D display module provided in this embodiment controls the activation order of the lenses 211 in each lens group 21. At the same time during the 3D display process, only one lens 211 in each lens group 21 is in the activated state, while the other lenses 211 are in the non-transparent state. This can avoid the problem of crosstalk between images displayed in adjacent viewing areas and improve the display effect.

[0074] Optionally, in the driving method for the naked-eye 3D display module provided in this embodiment, step S2 includes controlling, during the display time of each frame, the sequential activation of each lens 211 in each lens group 21 in the dimming structure 2. Specifically, the normal display of the display screen 1 combined with the high-frequency refresh of the dimming structure 2 ensures that changes in the light transmittance between adjacent lenses 211 are not easily detected by the human eye, thereby ensuring the continuity of the full view.

[0075] Optionally, in the driving method of the naked-eye 3D display module provided in this embodiment, when the dimming structure 2 includes the first liquid crystal cell or the second liquid crystal cell, the driving method of the display module further includes: adjusting the parameters of the driving signal to adjust the number of lenses 211 in each lens group 21 and the curvature radius of each lens 211. In this way, the number of lenses 211 in the lens group 21 and the parameters of each lens 211 can be adjusted, thereby adjusting the viewing area to provide users with a viewing experience more suitable for them.

[0076] By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

[0077] The naked-eye 3D display module, its driving method, and naked-eye 3D display device provided in the embodiments of the present application, by comprising multiple lenses in each lens group in the dimming structure, and each lens group corresponding to a pixel group, can increase the number of effective pixels in each pixel group compared to the prior art where one lens corresponds to one pixel group, thereby achieving an increase in viewpoints and an expansion of the viewing area; at the same time, by controlling the opening sequence of the lenses in each lens group, only one lens in each lens group is in the opening state at the same time during the 3D display process, while the other lenses are in the non-light-transmitting state, thereby avoiding the problem of crosstalk between images displayed in adjacent viewing areas and improving the display effect.

[0078] Those skilled in the art will appreciate that the steps, measures, and schemes in the various operations, methods, and processes discussed in this application may be interchanged, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the prior art that are similar to those disclosed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted.

[0079] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0080] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, "plurality" means two or more. For example, the first liquid crystal layer, the second liquid crystal layer, and the third liquid crystal layer can use the same liquid crystal material, and the only purpose is to distinguish the positions of these liquid crystal layers.

[0081] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0082] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0083] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0084] The above are only some of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A naked-eye 3D display module, characterized in that: include: A display screen, comprising a plurality of pixel groups, each of the pixel groups comprising x effective pixels, where x is an integer greater than or equal to 2; a dimming structure, disposed on the light-emitting surface of the display screen, comprising a plurality of lens groups, each of which corresponds to one of the pixel groups, and each of which comprises a plurality of lenses; at any given moment during 3D display, only one lens in each of the lens groups is in a light-transmitting state to allow display light to pass through; Each lens in the lens group corresponds to a pixel group, the effective pixel located at the center of the pixel group is defocused relative to the corresponding lens, and the effective pixels at the edge of the pixel group are at the focal length of the corresponding lens.

2. The naked-eye 3D display module according to claim 1, wherein: The dimming structure includes a first liquid crystal cell, which is configured to form the lens for allowing display light to pass through in a selected area under the control of a driving signal at the same time during a 3D display process.

3. The naked-eye 3D display module according to claim 2, wherein: The first liquid crystal box includes a first polarizer, a first electrode, a first liquid crystal layer, a second electrode, and a second polarizer arranged in a row on the light-emitting surface of the display screen; the polarization angles of the first polarizer and the second polarizer are perpendicular to each other; the first electrode includes a plurality of first sub-electrodes. During the 3D display process, the second electrode is maintained at a common voltage, and each of the first sub-electrodes is maintained at a corresponding driving voltage according to a driving signal, so that the liquid crystal molecules in the selected area of ​​the first liquid crystal layer are deflected to form the lens for allowing the display light to pass through.

4. The naked-eye 3D display module according to claim 1, wherein: The dimming structure includes: The second liquid crystal cell is configured to form a plurality of lens groups under the control of a driving signal, wherein the lens groups include a plurality of lenses, and each lens in each lens group is in a light-transmitting state during 3D display; The adjustable light-transmitting layer includes a plurality of adjustable areas, each of which is an orthographic projection on the display screen covering an orthographic projection of the lens on the display screen, and each of the adjustable areas is in a light-transmitting state or a light-shielding state under the control of a control signal.

5. The naked-eye 3D display module according to claim 1, wherein: The dimming structure includes: A plurality of dielectric lens groups, wherein the dielectric lens group includes a plurality of dielectric lenses; The adjustable light-transmitting layer includes a plurality of adjustable areas, each of which is an orthographic projection on the display screen covering an orthographic projection of the dielectric lens on the display screen, and each of the adjustable areas is in a light-transmitting state or a light-shielding state under the control of a control signal.

6. The naked-eye 3D display module according to claim 5, characterized in that: The adjustable light-transmitting layer includes a fifth electrode layer, a sixth electrode layer, and a third liquid crystal layer located between the fifth electrode layer and the sixth electrode layer, wherein the fifth electrode layer includes a plurality of fifth sub-electrodes, and each of the fifth sub-electrodes corresponds to one of the adjustable regions.

7. The naked-eye 3D display module according to claim 4 or 5, characterized in that: The adjustable light-transmitting layer includes a seventh electrode layer, an eighth electrode layer, and an electrochromic material layer located between the seventh electrode layer and the eighth electrode layer, wherein the seventh electrode layer includes a plurality of seventh sub-electrodes, and each seventh sub-electrode corresponds to one of the adjustable regions.

8. The naked-eye 3D display module according to claim 1, wherein: It also includes a spacer layer, which is located between the dimming structure and the display screen.

9. A naked-eye 3D display device, characterized in that: A naked-eye 3D display module comprising any one of claims 1-8.

10. A method for driving a naked-eye 3D display module, for driving the naked-eye 3D display module according to any one of claims 1 to 8, characterized in that: The driving method of the naked-eye 3D display module includes: The control display screen is displayed according to the layout diagram; During the 3D display process, each lens in each lens group in the dimming structure is controlled to be turned on in sequence.

11. The method for driving a display module according to claim 10, wherein: Controlling each lens in each lens group in the dimming structure to turn on in sequence includes: During the display time of each frame of display picture, the lenses in each lens group in the dimming structure are controlled to be turned on in sequence.

12. The method for driving a display module according to claim 10, wherein: When the dimming structure includes the first liquid crystal cell according to claim 2 or the second liquid crystal cell according to claim 4, the driving method of the display module further includes: The parameters of the driving signal are adjusted to adjust the number of the lenses in each lens group and the curvature radius of each lens.

Images